DIELECTRIC FREQUENCY-TEMPERATURE-COMPENSATED MICROWAVE WHISPERING-GALLERY-MODE RESONATORS

Authors
TOBAR ME KRUPKA J IVANOV EN WOODE RA
Citation
Me. Tobar et al., DIELECTRIC FREQUENCY-TEMPERATURE-COMPENSATED MICROWAVE WHISPERING-GALLERY-MODE RESONATORS, Journal of physics. D, Applied physics, 30(19), 1997, pp. 2770-2775
Citations number
15
Categorie Soggetti
Physics, Applied
Journal title
Journal of physics. D, Applied physics → ACNP
ISSN journal
00223727
Volume
30
Issue
19
Year of publication
1997
Pages
2770 - 2775
Database
ISI
SICI code
0022-3727(1997)30:19<2770:DFMW>2.0.ZU;2-H
Abstract
In this paper we show that it is possible to annul the frequency-tempe rature coefficient of a sapphire dielectric resonator using another di electric with the opposite frequency-temperature dependence. We have s uccessfully annulled the frequency-temperature coefficient of a compos ite sapphire-strontium titanate (Al2O3-SrTiO3) microwave resonator at 108 K with a resulting Q factor of 20 000-50 000 below 150 K.